Method of making tameks



Marh1,1932. f RNEUHAUS A 1,847,192

NETHODOF MAKING TANKS Filed June 13, 1929 reiterar insa a, rasa ttm il@nonsens conarnrnon or is Application iled Jane la, with Serial lo@ Thisinvention relates to a tanlr and method ci making the same and moreparticularly to tank for storing large quantities of acid or for use inpiclsling, plating and the lilre.` rlhe princical object of thisinvention is to provide at a ow cost a pickling, plating or storage tankwhich is entirely acid prooi and is not subject to Wear or deteriorationthrough the storage of acids: JV ith all orrns ci' tanlrs new used fiorstoring acids, such. as Wooden or lead lined tanks, Within acomparatively short time the acids eat through the Wood, orllealrsdevelop at the seams of the lead lining and the tanks he'- corne lealryand nnserviceable. With the present teni-r9 the lining is entirely `acidproof for concentrated and diluted, hot or cold snl1 furie,hydrochloric, acetic and lactic acids and is immune to a 30% nitric acidsolution, and will remain good working condition indennitely Withoutdeveloping any leaks.,

Another aim is to provide such a tanlr which is easily built up and canbe erected in a short time and when erected forms an integral structurewhich is entirely leak prooi. A further purpose is to provide such atanlr which can be made in any desired shape or size thereby permittingit to be placed Wherever convenient.

ln the accompanying drawings: ligure l isa vertical cross section of atank. made in accordance with the present invention.

Figure 2 is a fragmentary horizontal section taken on line 2 2, l.

Figure 3 is a perspective View oi a section of the tank illustrating oneof the processes `of its fabrication. i. v

Similar characters of reference' indicate like parts in the severalfigures of the drawings.

ln its general organization, this invention comprises an outer shellmade of. concrete or any other suitable material. and coated on itsinner side with an acid proof as halt cement having a high softening andme ting point, and a lining composed of acid proof ricks supported andembedded in a hard setting acld proof sulfur cement which melts underheat and is applied in a molten state.

The shell i oi? taal; can he made of any suitable material and is shown.as composed. ci crmcrete9 the bottom partei the shell being shown as snrbelote the concrete door 6 on? the bnil iing and ripper part risingabove the Alter the concrete has set and hardened, all dust and looseparticles removed from the inside of the shell and the inside ci theshell is coated with several 7 or asphalt cement. The asphalt cementused is Prefierably immune to acid and has a high softening and meltingand acts as a cushion and a binder for the lining, Each coat shonld beapplied While liet and allowed to cool. loeiore applying nent coat., erapplying the last coat the insidev ci theshell should be thoroughly'inspected any bare spot or blow hole should be marked, and coated overwith additional asphalt cemente The tank is then lined with acid proofbricks which are set embedded in a hard setting sulfur cement which isappliedin a het molten condition. A layer 8 of acid prooi? bricks orpreferably paring blocks 9 is iirst arranged over the door oil theconcrete shell 5, the blocks or bricks heing arranged about one-quarteroi an. inch apart. Each of these bricks is supported by two or more flathard pieces l@ ci the snliur cement, these hard pieces beingapproximately one quarter of an inch thick to Aspace the layer oi bricksfrom the bottom et the shell corresponding distance. These pieces l@ areor the same material as the sulfur cement ll which is subsequentlypoured in a molten state between the bricks to completely embed thesame.V

rllhe molten sulfur cement is nonr poured between the briclrs of thei'irst layer 8, the sulfur cement heinef poured into the vertical jointsuntil all tlie Vertical joints are `lled to the top The molten sulfurcement will ow underneath the bricks enveloping five sides of each ofthe bricks.

Although various forms of sulfur cement `can be employed, it ispreferable to employ a.

sulfur compound of high tensile strength and havinhg'a meltingtemperature of not less than 230 for exam le, sulfur and slate, sulfurand glass, or sul ur and clay in the .proportions of about 60% of sulfurto about 40%` of slate, lass or clay, as Such sul ur cement isabsolutely immune to concentrated or diluted, hot or cold sulfuric,hydrochloric, acetic and lactic acids and is immune to a nitric acidsolution. It is also immune to all atmospheric conditions.

.It is normally in aA solid form and is easily liquifed by heating inapot or kettle over a slow lire to about 250 F. At temperatures above 320F. this sulfur cement becomes pasty but liquefies upon reduction of thetemperature. It hardens a few minutes after application.

After the bottom layer `of bricks has been poured and the sulfur cementhas set, it is followed by a second or upper layer 12 of bricks. Thebricks of the secon layer are embedded in the same manner as those ofthe first layer 8, each brick being set upon two or more pieces 10 ofthe hard sulfur cement and the molten sulfur cement being subsequentlypoured in the vertical jointsbetween the ricks so as to flow under eachbrick and under the sid-es thereof and completely embed the same.

The side lining 13 of the tank is then built up of the bricks or blocks9, the bricks in com aratively shallow tanks of three feet deptlh orless beinglined` with the sides of the bricks against the concreteshellv 5 as shown and higher tanks being lined with the ends of thebrlcks against the wall. The lining is built up layer by la er, eachbrick of Aeach layer belng supporte by 'two or more lat pieces of thehard sulfur cement 10 as in making the floor layers, and each brick isset away from the coated Wall of the tank. After a layer of bricks ofone or more bricks in thickness has been soplaoed, a strip of paper 14is glued to the side of the layer so as to cover all the joints. Groundglue should be used and it should be allowed to dry a few minutes beforethe joints are filled with the molten sulfur cement, which latter flowsunder and around the bricks enveloping them on four sides. The nextsucceeding layer is `fabricated the same Way and the successive layersof bricks are embedded in place until the top of the tank is reached.

The tank should then be allowed to cool oii' yfrom ten to -fteen hoursafter which it can belled with hot water to loosen and re move the paperstrips from the side lining.

'The tank can then be completedbfy7 lplacin around the tank, this floorcan also be covered with a layer 17 of bricks which are set in thesulfur cement in the same manner as the bricks at the bottom of thetank; It is also apparent that drains or conduits can be set into thebottom or sides of the tank, such as the drain 18 which is closed by adrop valve 19.

the case may be.v

This invention provides an acid tank and method of making the same whichis inexpensive, easy to fabrlcate, and when complete is entirely leakproof. and free from Wear and tear and deterioration from the acids itis designed 4to hold and will function indefinitely. The lining and theshell of the tank are also cemented to form an integral tank which isstrong-and durable in its construction.

I claim as my invention:

1. A method of lining a tank having an outer shell which consists in suporting at least one layer of bricks on the liber of Said shell on hardpieces of sulfur cement, ouring molten sulfur cement in the jointsetween the bricks, supporting at least one layer of bricks along thesides of said shell on hard pieces of-sulfur cement, applying anadhesive strip along the sides of said side layer and over the joints atthe side of said side layer vertical joints between the bricks of saidside layer.

2. A method of lining a tank having an outer shell, which consists infirst coating the inside walls and goor of the shell with al v layer ofasphalt cement, arranging a layer of spaced bricks or the like over thecoated floor of the shell, pouring a hard setting acid proof cement inthe vertical joints between the outer shell which consists in firstcoatin the 105 inside walls and iioor of the shell witL hot moltenasphalt cement, permittin said layer of asphalt cement to cool and haren, arranging a layer of bricks or the like over the layer of asphaltcementfon the floor of said shell. n.0

and in spaced relationthereto, pouring molten sulfur cement having a`melt1ng temperature of not less than 230 F. in the vertical jointsbetween said bricks and the la er of asphalt cement on said floor andbuildln up the walls of the lining from said door bya'yin bricks or thelike layer by layer in spaced re ation to said coating layer of asphaltcement on` said walls an by pouring said molten sulfur cement betweensaid wall .bricks and between said wall bricks'and the said coatinglayer of said asphalt cement on said walls.

4. A method of lining a tank havin outer shell which consists inarranging at fe one layer of Dbricks above the ioor of `said shell andin spaced relation thereto, pouring molten sulfur cement in the jointsbetween the bricks, building up the walls of said lining by layingbricks or lthe like layer by layer in no and pouring molten sulfurcement in the bricks and building up the walls of the lining 'i' astlayer of all spaced relation to one another and to the sldes of saidshell2 applying an adhesive strip along the inner sides of said ysidebricks and over the joints between said side bricks and curing moltensulfur cement in the vertical ]oints between said side bricks.

5. A method of lining a tank having an outer shell which consists in suporting a bricks en the floor of sai shell and in spaced relationthereto, pouring molten sulfur cement in the joints between said bricks,building up the walls of the lining by layin bricks or the like layer bylayer in spec relation to one another and to the walls of said shell,arrangin a form against the inside faces of said bric and over thejoints therebetween, and pouring molten sulfur cement in the verticaljoints between said side bricks. A

lln testimony whereof I hereby ax my signature.

RICHARE NEUHAUS,

